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Derivative Instruments - Derivative Instruments Kinross Covered Call Options Table 1 (Details) (USD $)
 9 Months Ended
Sep. 30, 2013
KGC February 2013 $11 Call
  
Shares of Kinross 100,000
Beginning balance $ 3,000
Sale of call   
(Gain) on derivative instrument (3,000)
Ending liability balance   
KGC February 2014 $7 Call
  
Shares of Kinross 100,000
Beginning balance   
Sale of call 55,000
(Gain) on derivative instrument (40,000)
Ending liability balance 15,000
KGC February 2014 $8 Call
  
Shares of Kinross 50,000
Beginning balance   
Sale of call 35,000
(Gain) on derivative instrument (24,000)
Ending liability balance $ 11,000